Improved stone-quarrying- machine



Q genital 5mm Wastes-MM met @thm CURTIS O. LUCE ANI) CYREL XV. GREEN, Ol" BRANDON, ASSIGNORS flO THEMSELVES AND CYRENIUS M. WILLARD, OF CASTLETON," VERMONT.

Letters Patent No. 85,317, lated December 29, 1868.

IMPROVEJ'J STONE-QU'ARRYING- MACHINE.

v The Schedule referred to in these Letters Patent andI making part of the same.

*Hipp-.

To all whom/t ma/y concern Be it known that we, CURTIS O. LUCE and Crum. W. GREEN, both of Brandon, in the county of RutF Vland, and State of Vermont, have invented a new and useful Improvement in Machines for Quarrying Stone; and we do hereby declare the ollowingto be a full, clear, and exact description thereof, reference being had to the accompanying drawing, which is made a part of this specification.

The subject of our invention is a machine for sawing marble, slate, rock, mica, and other Vlike mineralscon sist-ing of one or more saws and drills, having their cuttingedges composed of diamonds or other very hard substances, mounted in a suitable adjustable frame, and opera-ted and fed by a novel and simple arrangement of devices.

In the drawing- Figure l represents a front elevation of our improved machine;

Figure 2 is a rear elevation thereof; and

Figure 3 is a plan view thereof.

Figure 4 is a face view ot' the saw detached, and

Figures and 6 are detached views of details hereinat'ter more` particularly referred to.

' A may represent a plate or frame, of suitable form to ati'oid bearings for the different working-parts, and

' adapted, by any suitable means, for attachment to the rock, or to the frame of the engine, or other suitable n support.

B is a horizontal shaft, mounted. in a bearing, b, in said plate, and provided on its outer end with a crank or other medium, through which it receives a continuons rotary motionifrom the engine or other motor.

It also carries, on the front side of the plate A, a crank, BL, connected by means of a rod, '0, to a slide,

vD, working in a horizontal slot, a, inI the plate, and

which is further connected, by a rod, E, to the saw F,

thus imparting to' it, by the rotation of the shaft B, a constant reciprocating motion.'

The connecting-rod E is coupled to the saw by means of a block, e, attached to it by means of a screw-joint,

and perforated verticallyfor the reception ofthe rod foi' n the saw-frame, and horizontally for the reception of a guide-bar, G, rigidly attached to the plate A, which bar serves to confine the saw to a horizontal path.

The upper bar f1, ot' the saw-frame, is screw-threaded at one of its ends, and provided with a nut, f2, by which to tighten the blade F', which, together with the fulcrum-piece f" and end-pieces f", may be made oi' one piece of iron, or other metal.

The teeth ofthe saw consist of diamonds, or similar hard substances, inserted in its face in the manner represented in gs l, 2, and 4.

The principal cutters f# fill project from the respectfy ive lower corners of the blade` so as to adapt the saw are of the same orA a rejnesented in figs. l, 2, and 4, in which latter figure an under-side view of said plate is shown.

By thismeans the posi-tion of' the driving-shaft may be readily adjusted to any desired extent, and thus, through its connections, cause the saw to cut more or less on either side ofthe centre..

H is a cross-head or presser-bar, employed to transmit the necessary feeding-movement to the saw.

It is confined to a vertical path by means of guide'- rods I, and provided with lugs h,.for the reception ot" the bar f of the saw-frame, and also with grooved friction-rollers h', which bear on said bar inside ofthe lugs h.

H H are screw-rods, projecting upward from the cross-head H, which, passing through the flange a* oi' the plate A, are engaged by gear-nuts J J, seated on said flange, and connected by an idle-wheel, K.

L is aswinging arm, pivoted on the hub ofthe wheel K, and carrying, at its 'outer end, a spring-reversible pawl, l, which meshes with the teeth of said wheel, and imparts' to it, at every stroke ofthe saw, a partial revolution, corresponding with the length of its stroke.

M is a bent rod, which is attached to' the slide D, and, projecting upward therefrom, occupies bearings rr a, projecting from the face of the flange ci.

m ym. are. collars, provided on said rod, in suitable position to engage with the arm L, and impart to it the requisite movement, being adjustable, to vary the amountrof this movement, by set-screws, in the ordinary manner.

N is a vertical shaft, stepped in .the bearing b, and provided with a bevel-wheel, Nl, meshing with one, B2, on the shaft B.'

It is provided with a universal joint, u, to allow of the described adjustment ot' the bearing b, and carries at its upper end a sliding pinion, N2, which meshes -with andv drives thewhecl K, when desired, but is capable oi' being elevated out of gear with said wheel, as represented in red in g. 2, by means of a fork, 0, pivoted to the plateA in convenient position, and einbra cing the grooved hub u2 of said pinion. v

When the gears N2 and K are in mesh, the pawl lis thrown out of contact with the wheel K, or the operation of said wheel by it stopped in othersuitable manner, and a constant rotary motion is imparted tothe A nuts J through the gearing, and when the intermittent motion is preferred, the pawl l being made to engage with the wheel K, and the pinion N2 thrown out of gear, said motion is imparted to them, as before described.

P P are drills, having their cutting-edge p formed similarly to those of the saw F.

They slide in suitable vertical ways formed by the arms or brackets A of the plate A, and receive both a rotary and reciprocating motion, as hereinafter described.

Q Q are cam-rods, pivoted to the cross-head H near its centre, as represented in iig. l, and extending through loops j f, on the end-pieces f* ofthe saw-trame, engage with grooved collars 1) on the drills, the vertical adjustment of which collars 'determines' the relative depth at which the drills shall cut.

It will be seen that the vertical feeding-movement of the head H and saw l will be imparted to the drills in the same degree, while, by the horizontal. reciprocation of the saw, by means ofthe cam-surfaces q of said bars, the necessary vertical reciprocation of the drills will 'be eti'ected.

' R R are shafts, mounted in bearings at the top of the plate or frame A, in the position represented in iig. 3, and provided on their convergingends with sliding bevel-pinions R', meshing with a' bevel-pinion, N3, on the shaft N, and on their other ends with bevelpinions It, which mesh with similar ones, 1,,-on the drills, and thus impart to them a constant rotation while the pinions R' and N are in gear.

The pinions IP' are connected to the drills, by means of a spline occupying a longitudinal groove in the drills, sd as to allow their described vertical movement.

lhe pinions R' are provided with groovedl hubs fr', which are engaged by forks S, pivoted to the plate A, as shown in lig. 2, bymeans of which they may be readily thrown out of gear when desired, so as to stop the rotary movement of either or both ofthe drills.

We propose providing the plate or frame with any suitable adjustment, to admit of its being attached at a. proper angle to suit the ledge in which it is imrking, and, when attached directly to the rock, making said attachment by means of tapered bolts inserted in perforated blocks or pins of wood, or other soft material, inserted in suitable holes drilled in the rock, which blocks are, by the action of the screw, expanded, and a most secure fastening thus obtained. This mode of attachment may also be used for other purposes for which it is adapted. c

-after the saine have been removed from the pit or quarry.

Having thus described our invention, the following is what we claim as new therein, and desire to secure by Letters Patentz 1. We claim the reciprocating saw F, provided with diamond teeth f* and f"', arranged. substantially in the manner described.

l2. We claim constructing the sawfblade F, with rigid ends projecting beyond the end-bars f4 of the frame, substantially as represented. I

3. We claim the combination of a reciprocating saw F, with a drill or drills, l, employed to free the ends of the saw-korf or channel, substantially as described.

4. We claim the combination ofthe dliving-shaft B, mounted in al1-adjustable box or bearingb the crank B', connecting-rods C E, slides E e, and guide-rod G, with the saw F, all constructed and operating substan tially as described, for the purposes specified.

5. \Ve claim the combination ofthe saw F ff cross- .head H h h', screws H', vertical guide-rods I, gear-nuts J, idle-wheel K, and ratchetlever L l, or its equivalent, substantially as and for the purpose descn'bed.

6. We clai1n,in combination with the drills P, the shafts BN R, bevel-gearing B2, Nl N3, R R2, i, and forks S, for the purpose of adapting said drills to receive a continuous rotary motion, or be separately stopped, substantially as set forth.

7. We claim, in conlbinatioil with the revolving drills P, the cam-bars (d q, operated by'means of the saw F and presser-bar H, in the manner described, to reciprocate and feed said drills.

CURTIS O. LUCE. GYREL W. GREEN.

Witnesses J. Q. Hawkins, W. M. LINCOLN. 

